The atlantic salmon lives in the ocean for most of its life. every year, it returns to freshwater rivers to spawn. based on what you’ve learned so far about membrane proteins, diffusion, and osmosis, what kind of mechanism allows the salmon cells to adapt to freshwater after leaving saltwater?

The correct answer would be osmosis.

Explanation:

When salmon are in freshwater, they are in the hypertonic condition to their surroundings because of more water outside the body cells than inside. The water moves inside the body cells due to osmosis.

So the salmon suffer from water lodging and low salt in the body. It detected by the hypothalamus and regulate pituitary for secreting the hormone. The hormone results in the transport of ions to occur within the gill cells while they absorb salts across the gill cells which ultimately exchange sodium and chlorine ions against the concentration gradients.

Thus, the correct answer would be osmosis.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.